[TRNSYS-users] if elseif else statement in equations

[Böttner, Jan]

Hey everyone,

i found this entry about implementing if else statements: http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/2013-February/024732.html

I'm wondering if ist possible to extend this to an if elseif else statement.

I want the output X to be X=1 if the temperature is t<5, X=2 for t>=5.and.t<15 and X=3 for t>=15.

I tried this, but it's wrong and doesnt work:
X = GT(T,GT(T,15)*S+(1-GT(T,15))*U)*U+(1-GT(T,5))*W with S=3,U=2and W=1.

If anyone knows a solution i'd appreciate it.

Best regards
Jan
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